Easy question - I think this is just an actual vs nominal issue 1

[ColinPearson]

I'm looking at a bunch of old Atlantic Richfield Oil Co drawings, and a lot of their roof purlins are called out as W10x11.5

Is this the same beam listed in AISC as W10x12?

For my purposes, anything close to a W10x12 is way more than adequate, so I don't have any type of stress or deflection issue, I just wanted to know.

 

[woodman88]

Here is one place you can get information on the W10x11.5

Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.

 

[ColinPearson]

I found that site too, but there doesn't seem to be any properties of any shapes; all i found was listing what shapes they stock, but no details.

 

[cvg]

you may find something here:

http://www.slideruleera.net/contributions.html

 

[PMR06]

You can download shape databases from AISC here:

http://www.aisc.org/content.aspx?id=2868

In the meantime,

W = 11.5
A = 3.39
d = 9.87
bf = 3.95
tf = 0.204
tw = 0.180
Sx = 10.5
Zx = 12.2
Ix = 52.0

Slightly less than the modern W10x12

 

[ColinPearson]

Thanks all.

Have yourselves a good day.

 

[IFRs]

This used to be a BJ - Junior Beam